Nicholson had been in his bedroom playing video games when he got upset and began yelling, investigators say. When his mother went to check on him, he began to argue with her and ended up breaking the headset to his video game. Nicholson then blamed her for the broken headset and threatened to kill both his mother and father.

Nicholson then retrieved a handgun from the home and fired two rounds into an inside wall and then shot his mother in the head, according a Modesto Bee report.

After the shooting, Nicholson's father wrestled the gun away from his son, who then fled the scene in a vehicle and went to a relative's home in a nearby city, according to police.

Officers tracked the vehicle to the relative's home and took Nicholson into custody.